Question

The perimeter of an isoscel es triangle is 40cm and one f the equal sides is 10 cm .find the other sides of the triangle.

Answer 1

Given -

perimeter. 40cm

side a . ?

side b. 10 cm

P= a+2 b

40= a+ 2×10

40= a +20

a= 40-20

a= 20.